Ten years after its first appearance, the famous name “Carrera” is once again part of the Porsche program and is now part of the 911 nomenclature. The name comes from one of the most famous races in the world that took place in Mexico in the 1950s and in which Porsche won several victories with the 356 and 550 Spyder: the Carrera Panamericana. The 911 Carrera RS (for Renn Sport) was presented in October 1972 at the Paris Motor Show and was designed entirely for competition. When the International Sporting Commission changed the rules of motor sport in 1972, Porsche coveted the European GT Championship but was obliged to design and homologate a model that was fundamentally sportier than the 911 2.4 S. As stipulated in the new rules, at least 500 cars had to be produced to obtain group 4 homologation.
As far as the specifications are concerned, Porsche has few alternatives to reconcile budget and minimum lead time. The Carrera RS had to be mainly a lighter and more powerful variation of an existing model.
This successful launch was confirmed by the victory of the Carrera 2.8 RSR at the Daytona 24 Hours in 1973. Motorsport enthusiasts suddenly discovered that the car was not only designed for competition, but that it was also suitable for everyday use in the city and on the road. At a time when there were no speed limits, it allowed all “sports cars” to be “dropped off” whether on highways or winding roads.
Externally, the most striking feature of the RS is its famous fin nicknamed “duck tail”. Built into the engine hood, it increases the 911’s rear-end support, reducing lift by 75%. But these delightful «seventies» look wouldn’t be so typical and charming without the two-tone marriage of the body’s bright colors and the Fuchs rims linked by a Carrera logo all along the side. To mark the beast, Porsche adds a “Carrera RS” rear logo on the spoiler and a “Porsche” lettering of the same color on the bottom of the engine hood. The 911 Carrera RS also retains the wider rear wings of the 2.4S. At the front, the RS inaugurates on the models, well known as the “Lightweight” (option M471), a polyester bumper that integrates an additional oil cooler in place of the license plate. When a Porschist tells you about a “light” or a “sport”, it refers to the 200 models that have been lightened to the maximum. In detail, the weight loss envisaged by the factory has been obtained by reducing the thickness of the sheet metal and glazing for certain elements, by using a specific forged aluminium front auxiliary frame, a plastic tank and bumpers, the removal of various trim and soundproofing, the engine hood lock, the rear seats, the dashboard padding, the watch, pocket pockets, armrests, door recall handles. In addition, the front seats give way to two superb Recaro buckets. These 200 models were all sold. Along with the “Sport”, a “Touring” version (M472) was also available in the catalog. Indeed, Porsche had envisaged a less Spartan version from the beginning, underestimating the commercial potential of the Carrera RS Light. With an interior equipment very close to that then available on the 2.4 S, the “Touring” or “comfort” version abandons lightweight windows and aluminium and polyester bodywork elements, replaced by sheet metal. Given the success of the first year (1972), two series of 536 and then 554 units were added in 1973 to the production initially planned, but with some slight differences from the homologation model. The total production of the Porsche 911 Carrera RS finally exceeded 1500 units, allowing it to be homologated as a Group 3 car.
The 911/83 type engine of the Porsche 911 Carrera RS is derived from the 190 HP 2.4 S engine, pushed to 2687 cc by increasing the bore by 6 mm. The lessons learned from the competition also enabled Porsche to lighten the aluminum engine block by replacing the “Biral” cylinder liners with a “Nikasil” treatment, a very resistant nickel-silicon alloy applied by electrolysis to the cylinder walls. Lighter flat-head pistons and a special crankshaft are also fitted. The compression ratio remains at 8.5:1 but the power of the new engine climbs to 210 hp obtained at 6300 rpm for a torque of 26 mkg at 5100 rpm. The Carrera RS, thus equipped, will become the most powerful 911 on the road among the “Ur-911s”, i.e. the first generation. The gearbox is a 5-speed 915/08 type, the 4th and 5th gears of which have been lengthened compared to the 2.4L and the clutch has been reinforced. Thanks to a very advantageous power-to-weight ratio, the Carrera RS achieves a very high level of performance for its time, and even today. Its top speed is over 240 km/h and it accelerates from 0 to 100 km/h in 6.3 seconds. What the numbers don’t tell us is that this engine is one of the most melodious Flat 6’s that exist. Its pure, metallic tone is a true delight to the ears! What a delight to hear it evolve from idle to the red zone that it likes to go for with a vigor that is very pleasing!
As we have seen, everything that was not essential for driving was rigorously removed or lightened, and we thus arrive at an empty weight of 960 kg for the famous “Lightweight”. In order to increase stability and to allow a stronger transverse acceleration, the rear rims are wider (7 inches) than the front rims (6 inches). 18 and 19 mm anti-roll bars have been added at the front and rear respectively. Bilstein gas shocks, firmer than the Koni usually used by Porsche, are attached to the body with reinforced anchoring points. Finally, braking is the same as in the S, with the exception of the calipers, which are made of aluminum on the Carrera RS. Apart from technical considerations, you really have to have had at least once in your life the chance to drive a few kilometers of small road or circuit at the wheel of the Porsche 911 Carrera RS to understand the excitement and euphoria it evokes in its driver. Obviously, in terms of efficiency and pure performance, the 2.7L RS is behind the recent 964 RS 3.6 and 993 RS 3.8L… but not as much as one might think despite its 20 years in the making! All in all, the RS 2.7 doesn’t take long to take you to the nirvana of the automobile… sporty. What a grandma!
The number of units manufactured for the road RS is only 1550, including 1308 “Touring” and 204 “Light”, in addition to the 17 RSH, the homologation models … In other words, there is not enough for everyone and that’s the problem!
The Porche 911 Carrera RS 2.7L is without a doubt “LA” 911 legend par excellence. It seems destined to remain forever the most desirable and desired Porsche, beyond even its dynamic qualities alone. The last object of desire of the pre-1973 oil crisis, the 911 Carrera RS embodies in its own way the symbol of an era of freedom and pleasure that we have resigned ourselves to never knowing again. This is undoubtedly also why it touches the hearts of enthusiasts so much…
PRODUCTION 2.7/2.8 RS/RSR
On a production (March 1972 to July 1973) of 1590 vehicles (Prototypes, RSH, M 472, M 471, M491) (source: Carrera RS Book 3 by Thomas Gruber and Georg Konradsheim):
– 10 non-commercialized cars were used as prototypes without chassis numbers.
– 17 cars were used for type 0 homologation, called RSH, as light as possible, with a multitude of detail developments; they can be likened to the Lightweight and were given a chassis number in no particular order, 0016, 0019, 0020, 0092, 0242, 0508, 0521, 0550, 0909, 0935, 1256, 1382, 1387, 1429, 1430, 1470, 1550 in order to be marketed.
– 1308 cars were produced under the type M 472 called Touring.
– 200 cars were produced under the type M 471 called Lightweight.
– 30 Indian red.
Our 911 Carrera RS 2,7L VIN No. 911 360 0556 was built by the Porsche factory in late 1972.
Delivered to ltaly 10. 01. 1973
M 220 Limited Slip Differential
M 471 Light weight Version
Color: lndian Red (2525)
Interior KL black (11)
1st owner: sold to Porsche ltaly on the 01. 03. 1973
2nd owner: ltaly
3rd owner: Jürgen Kannacher Krefeld (Germany) 1974
4th owner: Gilles Bochand Paris (France) 1984
5th owner: Monaco (Monte Carlo) 2013: 87500 km original & matching number engine.
The owner performed a total restauration in 2013 by renown workshop
6th and current owner bought the car in 2017
Today fully restored with matching n° this car corresponds in every detail to the original factory condition. Delivered with French title, FIVA card with A/3 condition, a Kardex and a complet file of pictures during the restauration. It’s a car not to be missed!